Toyota RAV4 manuals

Toyota Sienna Service Manual: Open in Rear Curtain Shield Squib RH Circuit

DTC B1631/84 Open in Rear Curtain Shield Squib RH Circuit

DESCRIPTION

The rear curtain shield squib RH circuit consists of the center airbag sensor assembly and the curtain shield airbag assembly RH.

The circuit instructs the SRS to deploy when deployment conditions are met.

DTC B1631/84 is recorded when an open circuit is detected in the rear curtain shield squib RH circuit.

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

HINT:

1 CHECK CURTAIN SHIELD AIRBAG ASSEMBLY RH (REAR CURTAIN SHIELD SQUIB RH)

CHECK CURTAIN SHIELD AIRBAG ASSEMBLY RH (REAR CURTAIN SHIELD SQUIB RH)

  1. Turn the ignition switch to the LOCK position.
  2.  Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.
  3.  Disconnect the connectors from the curtain shield airbag assembly RH.
  4.  Connect the white wire side of SST (resistance 2.1 Ω) to the floor wire No. 2.

    CAUTION: Never connect a tester to the curtain shield airbag assembly RH (Rear curtain shield squib RH) for measurement, as this may lead to a serious injury due to airbag deployment.

    NOTICE: Do not forcibly insert the SST into the terminals of the connector when connecting.

    Insert the SST straight into the terminals of the connector.

    SST 09843-18060

  5.  Connect the negative (-) terminal cable to the battery, and wait for at least 2 seconds.
  6.  Turn the ignition switch to the ON position, and wait for at least 60 seconds.
  7.  Clear the DTCs stored in memory.
  8.  Turn the ignition switch to the LOCK position.
  9.  Turn the ignition switch to the ON position, and wait for at least 60 seconds.
  10.  Check the DTCs

OK: DTC B1631/84 is not output.

HINT: Codes other than DTC B1631/84 may be output at this time, but they are not related to this check.

REPLACE CURTAIN SHIELD AIRBAG ASSEMBLY RH

2 CHECK FLOOR WIRE NO.2 (REAR CURTAIN SHIELD SQUIB RH CIRCUIT)

CHECK FLOOR WIRE NO.2 (REAR CURTAIN SHIELD SQUIB RH CIRCUIT)

  1. Turn the ignition switch to the LOCK position.
  2.  Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.
  3.  Disconnect the SST (resistance 2.1 Ω) from the floor wire No. 2.
  4.  Disconnect the connector from the center airbag sensor assembly.
  5.  Measure the resistance according to the value(s) in the table below.

Standard resistance

Standard resistance

3 CHECK CENTER AIRBAG SENSOR ASSEMBLY

CHECK CENTER AIRBAG SENSOR ASSEMBLY

  1. Connect the connectors to the curtain shield airbag assembly RH and the center airbag sensor assembly.
  2.  Connect the negative (-) terminal cable to the battery, and wait for at least 2 seconds.
  3.  Turn the ignition switch to the ON position, and wait for at least 60 seconds.
  4.  Clear the DTCs stored in memory.
  5.  Turn the ignition switch to the LOCK position.
  6.  Turn the ignition switch to the ON position, and wait for at least 60 seconds.
  7.  Check the DTCs.

OK: DTC B1631/84 is not output.

HINT: Codes other than DTC B1631/84 may be output at this time, but they are not related to this check.

USE SIMULATION METHOD TO CHECK

Short in Rear Curtain Shield Squib RH Circuit
DTC B1630/83 Short in Rear Curtain Shield Squib RH Circuit DESCRIPTION The rear curtain shield squib RH circuit consists of the center airbag sensor assembly and the curtain shield airbag assembl ...

Short to GND in Rear Curtain Shield Squib RH Circuit
DTC B1632/81 Short to GND in Rear Curtain Shield Squib RH Circuit DESCRIPTION The rear curtain shield squib RH circuit consists of the center airbag sensor assembly and the curtain shield airbag ...

Other materials:

Room Temperature Sensor Circuit
DESCRIPTION This sensor detects the cabin temperature that is used as the basis for temperature control and sends a signal to the A/C amplifier. WIRING DIAGRAM INSPECTION PROCEDURE 1 READ VALUE OF INTELLIGENT TESTER (a) Connect the intelligent tester to the DLC3. (b) Turn the ignition s ...

Short to B+ in Driver Side Squib Circuit
DTC B0103/12 Short to B+ in Driver Side Squib Circuit DESCRIPTION The driver side squib circuit consists of the center airbag sensor assembly, the spiral cable and the steering pad. The circuit instructs the SRS to deploy when deployment conditions are met. DTC B0103/12 is recorded when a ...

ABS Warning Light Remains ON
DESCRIPTION If any of the following is detected, the ABS warning light remains on. The skid control ECU connectors are disconnected from the skid control ECU. There is a malfunction in the skid control ECU internal circuit. There is an open in the harness between the combination meter an ...

В© 2011-2024 Copyright www.tsienna.net